irqchip/irq-riscv-imsic-early: Fix fwnode leak on state setup failure

{
  "id": "8768518f240a3fc4bbc0343b763983a4db9bcc405ddfecbad98d9fa44b48c1e8",
  "url": "https://osv.dev/vulnerability/CVE-2026-72026",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "irqchip/irq-riscv-imsic-early: Fix fwnode leak on state setup failure",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: irqchip/irq-riscv-imsic-early: Fix fwnode leak on state setup failure imsic_early_acpi_init() allocates a firmware node before setting up the IMSIC state. If imsic_setup_state() fails, the function returns without freeing the allocated fwnode. Free the fwnode and clear the global pointer on this error path, matching the cleanup already done when imsic_early_probe() fails. [ tglx: Use a common cleanup path instead of copying code around ]",
    "evidence": "osv:CVE-2026-72026",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.12.97",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.18.40",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "7.1.5",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2026-72026",
      "aliases": [
        "CVE-2026-72026"
      ],
      "affected": [
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                  "fixed": "b321a046d7717225c07ba3f4b7b0a4758c2f9d58"
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                  "fixed": "1358126fbed104e5657955d3ba029b283687ba02"
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        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
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                  "introduced": "6.12.0"
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            {
              "type": "ECOSYSTEM",
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                  "introduced": "6.13.0"
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                {
                  "fixed": "6.18.40"
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              ]
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            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.19.0"
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                {
                  "fixed": "7.1.5"
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          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-72026.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:21.684181968Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/1358126fbed104e5657955d3ba029b283687ba02",
        "https://git.kernel.org/stable/c/a27f17bad38c5fea3c73281517869af0089a0451",
        "https://git.kernel.org/stable/c/a5a367756926de1c21a013ea5ed7fc2219f4cb4f",
        "https://git.kernel.org/stable/c/b321a046d7717225c07ba3f4b7b0a4758c2f9d58",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72026.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-72026",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72026.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-72026",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 487878,
  "published_at": "2026-08-15T05:51:50.581+00:00"
}